> On Thursday 02 July 2009 18:50:39 Dan Dennedy wrote: >> On Thu, Jul 2, 2009 at 4:21 AM, Marco<[email protected]> wrote: >> > Easy to see in the vignette effect f.e. (default center is 50%x50% >> with >> > width 50%) >> >> MLT does accept percentages for spatial parameters - such as >> everywhere you get the rectangle widget. We'll have to see what JBM >> says. I am sure he knows this, but decided not to for a reason - maybe >> as simple as control and certainty. Certainly, if you enable a Distort >> option, maybe you do not want the width and height to be percentage, >> but Distort is generally not a good option to use. I encourage you or >> others to experiment with changing this parameter and widget type to >> use % and see how well it works. > > The reason why I decided not to use percentages is that the percentages > are not very handy in some cases. > For example let's say you have a very large image, for example 3000x576 > pixels and want to scroll it. > > If you use percentages, setting size to 100%x100% will scale the image to > your video profile. If you want the image to keep it's real size, you must > calculate the percentage that 3000 is related to 768, and the percentage > being not very precise the chances that your image will be slightly > resized are big. > > That's why I decided to use absolute pixel numbers so that you can > precisely enter dimensions... I do however understand that having > percentages can be nicer and currently the geometry parameter for the > vignette effect does not seem usable... > > regards > jb after some look into vignette and mlt_geometry i saw, mlt_geometry can handle float values. vignette not at all (this can be changed).
the geometry-type plugin is not the best solution for this filter. because it is a keyframeable filter, we could use the new keyframe settings dialog for more-value parameters, if this is a good idea ? So we could handle change of resolution of project video size, without changing anything. regards marco > > > ------------------------------------------------------------------------------ > _______________________________________________ > Kdenlive-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/kdenlive-devel > ------------------------------------------------------------------------------ _______________________________________________ Kdenlive-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/kdenlive-devel
